me_gabor_01

Overview

This model type is inspired by the motion energy model described by
Adelson and Bergen (1995).

Configuring the Model

Parameters

These parameters set the basic simulation settings:

sscale - spatial resolution (degrees/pixel)

tscale - temporal resolution (samples per second)

xn - filter x-axis spatial extent (pixels)

yn - filter y-axis spatial extent (pixels)

tn - duration of the model (sampling units)

Filter

me_gabor_01 models use a <filter>
object that specifies parameters for the spatiotemporal RFs of each input
subunit. These models use a 'Gabor' type filter.

Spike Generation

me_gabor_01 models require a
<spike_gen> object that defines
the method of spike generation from the final filter output.

Model Outputs

Model Components

The spatial filters for each of the four component subunits can be
output using the <filter> object's 'write_filter' option.
If Poisson spike generation is used, then the output firing probability
can be written to a .pl file using the 'spike_dump' option in
<spike_gen>.

Model Responses

The following response types can be requested:

spikes - spike times

filter_pref_even - raw output of the preferred, even filter

filter_pref_odd - raw output of the preferred, odd filter

filter_anti_even - raw output of the anti-preferred, even filter

filter_anti_odd - raw output of the anti-preferred, odd filter

me_pref_raw - the sum of the squares of the even and odd preferred
direction filter

me_anti_raw - the sum of the squares of the even and odd
anti-preferred direction filter